Spark and exhaust mechanism for explosive-engines.



M. BOMBE RGER. SPARK AND EXHAUST MECHANISM FOR EXPLOSIVE ENGINES,

APPLICATION FILED JULY 27,1916.

Patented May14,1918.

MOSES BOMBERGEB), 0F 'GUMRU TOWNSHIP,

TO one & snlvnsownn, ING.,

BERKS GOUN TY, PENNSYLVANIA, ASSIGNOR OF'READING, PENNSYLVANIA.

SPARK AND EXHAUST MECHANISM FOR EXPLOSIVE-ENGINES.

Specification of Letters Patent.

Patented May 14, 1918.

Application filed July 27, 1916. Serial No. 111,561.

To all whom it may concern.-

Be it known that I, Mosns BOMBERGER, a citizen of the United States,residing at Mountain View Hotel, Cumru township, in the county of Berksand State of Pennsylvania, have invented certain new and usefulImprovements in Spark and Exhaust Mechanism for Explosive-Engines, ofwhich the following is a specification.

My invention relates to speed regulating mechanism for explosiveengines, and consists in the improved spark and exhaust controllingmeans hereinafter vfully described in connection with the accompanyingdrawings, the novel features of which are particularly pointed out inthe claim.

Figure 1 is a side elevation of a vertical explosive engine having myinvention applied thereto in connection with known coacting mechanism.The fiy-wheel is removed, but the governor arm carried thereby isindicated in dotted lines.

Fig. 2 is a partial end view; both the flywheel and governor beingshown.

Fig. 3 is a separate sectional view of the timing gear with itsexhaust-control cam and spark-control contact.

Fig. 1 is a plan view of the comblned spark-and-exhaust control lever;and F igs. 5 and 6 are separate views of its separately formed parts.

The drawing illustrates an explosive engine comprising a cylinder 2having a water jacket and tank extension 3, 4, and inlet and exhaustvalves as usual, the latter being provided with a depending stem 5through which it is operated; a supporting frame 7 with crank shaft 8mounted therein and provided with a fiy-wheel 9 carrying a centrifugalgovernor arm 10; a lever 11 arran ed to engage the exhaust valve stem 5;a timing gear 12 carrying a cam 13 operatlve upon said lever 11; and agovernorcontrolled latch 15, 16 for said lever.

All of the above-mentioned parts are broadly old and well known inexplosive engines; my invention consisting particularly in the improvedconstruction hereinafter fully described, the main object of which is toprovide simple and advantageous means for properly controlling thesparking and exhaust.

' e lever 11 is shown pivoted as usual at a fixed point 20; with one endthereof arranged to lift the exhaust-valve stem '5 when itself raised bythe timing-wheel cam 13, and its other end 21 preferably adapted tooperate a pump, not shown. The governor controlled latch 15 is adapted,as usual, to hold the lever and exhaust valve in fully raised positionwhile the determined speed is exceeded, said latch 15 being acted uponby the centrifugally swung governor 10 through the spring-connectedlatch-arm 16. In my improved construction this operating lever 11 forthe exhaust valve carries a separately formed spark-control contactattachment 25; the latter being rigidly fixed to the ever with suitableinsulation therefrom as indicated at 26, and being connected to thesparking wire 27 extending to the usual sparking plug, not shown; sothat the contact point 28 of said rigid attachment is swung up or downwith the lever as the latter is raised or lowered by the passing of thetiming-wheel cam 13 at each revolution of said wheel, and is held inraised position by the lever latch 15 when the latter is thrown intoaction by the governor 10. And the rotary-timing-wheel 12 is providednot only with said exhaust-control cam 13 for operating the lever 11,but also with a circuit-making contact 30 adapted to make passingsparking connection with the lever-carried contact point 28 when thelever is lowered from its raised position indicated in Fig. 1, to itsnormal lowered position upon the hub of timing gear 12. This contact 30is fixed to the timing wheel by means of a slotted connection 32, asindicated, so as to permit of any desired adjustment. It is swung pastthe lever-carried contact point 28 without making sparking connection,when the lever is in raised position; and when the latter is in loweredposition such passing connection is made without exerting any liftingaction upon the exhaust valve, this latter being effected solely by theexhaust-control cam 13.

y improved mechanism is advantageously simple and free from liability ofderangement, as well as positive and reliable in operation, and theconstruction specifically set forth may be modified within the scope ofthe invention as defined in the claim.

What I claim is:

In an explosive engine, the comblnation of an exhaust valve, carrymg anexhaust justably fixed spark-control Contact, an i11- terposed plvotallymounted valvs-operatmg lover lmvlng a clroult-makmg Contact pleasinsulatedly fixed t-h controlled latch for fiopies of this patent m.

"issswo Wheel Contact being adapted to raise the low/' bred level inmaking; circuit, and to clear tbs lever Contact piece when the lever isin 10 latched position, substantially as set forth.

In testimony whereof I affiz; my signature.

MosEs BOMBERGER.

a rotary timing Wheel cont-17o cam and an adereto, and a governor saldlever; SZLld tnnmg five cents each, by adflressing the Commissioher oiEatents, Washington; Cs

ay be obtained for

